PTFE back pressure regulator
Description
The back pressure valve is used to prevent the liquid from flowing or siphoning under the action of gravity. At this time, the back pressure valve can reduce the flow and pressure fluctuations caused by the siphon.
Features
• Spring diaphragm structure, adjustable pressure (see the parameter table for pressure adjustment range)
•The only part in contact with the medium is the lower valve body and the diaphragm, and the lower valve body and the diaphragm are sealed with sealing ribs, which has good sealing effect and high sensitivity
•The conventional diaphragm adopts the EPDM lining tetrafluoroethylene form, which is processed with cloth, has good sealing effect and long service life; pure tetrafluoroethylene diaphragm has high temperature resistance and strong corrosion resistance
Application
•Chemical industry, water treatment, laboratory
•Corrosive liquid, ordinary gas
Parameters:
• Adjustable pressure 0-0.3MPa, 0-1.0MPa (see parameter table for details)
• Caliber: DN15-DN40
•Safety test pressure: 1.5 times the maximum input pressure
•Applicable temperature: ordinary diaphragm -5ºC to +80ºC); PTFE diaphragm: -5ºC to +80ºC)
Material:
• Material of lower valve body: PVC, SS304, SS316L, PTFE, PVDF, PP, carbon steel, etc. (customized as required)
•Diaphragm material: EPDM lined with tetrafluoroethylene (composite diaphragm), PTFE (polytetrafluoroethylene)
•Material of upper valve body: PVC, carbon steel (nickel-plated, blackened), 304 stainless steel, 316L stainless steel
Appearance and dimension
How to choose the back pressure valve on the industrial pipeline?
Back pressure valves generally have two purposes:
1: The back pressure valve is used to prevent the liquid from flowing (or siphoning) under the action of gravity. At this time, it is generally selected to be greater than the pressure of the liquid itself. For example, to prevent the liquid from the liquid level of 2 meters in the medicine tank from flowing by itself, a pressure greater than 0.02MPa can be selected The back pressure valve is generally 0.1MPa.
2: The back pressure valve is used to stabilize the flow of the pump. For example, the flow of some pumps varies greatly with pressure. A back pressure valve can be set at the outlet of the pump to stabilize the output flow of the pump. At this time, the back pressure valve is generally selected The pressure is the actual working pressure of the pump or slightly less than the working pressure of the pump.
The one-way valve on the outlet pipeline is used to prevent liquid from returning, and the back pressure valve is used to maintain a constant pressure at the pump outlet.
When Order, please provide the following data:
Description
The back pressure valve is used to prevent the liquid from flowing or siphoning under the action of gravity. At this time, the back pressure valve can reduce the flow and pressure fluctuations caused by the siphon.
Features
• Spring diaphragm structure, adjustable pressure (see the parameter table for pressure adjustment range)
•The only part in contact with the medium is the lower valve body and the diaphragm, and the lower valve body and the diaphragm are sealed with sealing ribs, which has good sealing effect and high sensitivity
•The conventional diaphragm adopts the EPDM lining tetrafluoroethylene form, which is processed with cloth, has good sealing effect and long service life; pure tetrafluoroethylene diaphragm has high temperature resistance and strong corrosion resistance
Application
•Chemical industry, water treatment, laboratory
•Corrosive liquid, ordinary gas
Parameters:
• Adjustable pressure 0-0.3MPa, 0-1.0MPa (see parameter table for details)
• Caliber: DN15-DN40
•Safety test pressure: 1.5 times the maximum input pressure
•Applicable temperature: ordinary diaphragm -5ºC to +80ºC); PTFE diaphragm: -5ºC to +80ºC)
Material:
• Material of lower valve body: PVC, SS304, SS316L, PTFE, PVDF, PP, carbon steel, etc. (customized as required)
•Diaphragm material: EPDM lined with tetrafluoroethylene (composite diaphragm), PTFE (polytetrafluoroethylene)
•Material of upper valve body: PVC, carbon steel (nickel-plated, blackened), 304 stainless steel, 316L stainless steel
Appearance and dimension
| Model | Material | DN(mm) | Design pressure(MPa) | Dimension | Connection | |
| Lower body diameter(mm) | Total height(mm) | |||||
| RXBF-P6/1.0 | PVC | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8" |
| RXBF-P8/1.0 | PVC | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4" |
| RXBF-P10/1.0 | PVC | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8" |
| RXBF-P15/1.0 | PVC | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2" |
| RXBF-P20/1.0-N | PVC | 20 | 0.1-1.0 | 64.7(Small valve body, suitable for pumps within 250L/h) | 104 | Rc3/4" |
| RXBF-P20/1.0 | 87 | 123 | ||||
| RXBF-P25/1.0 | PVC | 25 | 0.1-1.0 | 87 | 128 | Rc1" |
| RXBF-P32/1.0 | PVC | 32 | 0.1-1.0 | 117 | 175 | Rc1+1/4" |
| RXBF-P40/1.0-N | PVC | 40 | 0.1-1.0 | 117(Small valve body, suitable for pumps within 2500L/h) | 185 | Rc1+1/2" |
| RXBF-P40/1.0 | 137 | 240 | ||||
| RXBF-P50/1.0 | PVC | 50 | 0.1-1.0 | 167 | 260 | Rc2" |
| RXBF-P65/1.0 | PVC | 65 | 0.1-1.0 | 177 | 325 | Rc2+1/2" |
| RXBF-P80/0.6 | PVC | 80 | 0.1-0.6 | 230 | 420 | Rc3" |
| RXBF-P100/0.6 | PVC | 100 | 0.1-0.6 | 250 | 430 | Rc4" |
| RXBF-S6/1.0 | SUS304/316L | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8" |
| RXBF-S8/1.0 | SUS304/316L | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4" |
| RXBF-S10/1.0 | SUS304/316L | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8" |
| RXBF-S15/1.0 | SUS304/316L | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2" |
| RXBF-S20/1.0-N | SUS304/316L | 20 | 0.1-1.0 | 64.7(Small valve body, suitable for pumps within 250L/h) | 104 | Rc3/4" |
| RXBF-S20/1.0 | 87 | 123 | ||||
| RXBF-S25/1.0 | SUS304/316L | 25 | 0.1-1.0 | 87 | 128 | Rc1" |
| RXBF-S32/1.0 | SUS304/316L | 32 | 0.1-1.0 | 117 | 175 | Rc1+1/4" |
| RXBF-S40/1.0-N | SUS304/316L | 40 | 0.1-1.0 | 117 | 185 | Rc1+1/2" |
| RXBF-S40/1.0 | 137 | 240 | ||||
| RXBF-S50/1.0 | SUS304/316L | 50 | 0.1-1.0 | 167 | 260 | Rc2" |
| RXBF-S65/1.0 | SUS304/316L | 65 | 0.1-1.0 | 177 | 325 | Rc2+1/2" |
| RXBF-S80/0.6 | SUS304/316L | 80 | 0.1-0.6 | 225 | 420 | 3"flange |
| RXBF-S100/0.6 | SUS304/316L | 100 | 0.1-0.6 | 240 | 430 | 4"flange |
| Over DN100 can oem | ||||||
How to choose the back pressure valve on the industrial pipeline?
Back pressure valves generally have two purposes:
1: The back pressure valve is used to prevent the liquid from flowing (or siphoning) under the action of gravity. At this time, it is generally selected to be greater than the pressure of the liquid itself. For example, to prevent the liquid from the liquid level of 2 meters in the medicine tank from flowing by itself, a pressure greater than 0.02MPa can be selected The back pressure valve is generally 0.1MPa.
2: The back pressure valve is used to stabilize the flow of the pump. For example, the flow of some pumps varies greatly with pressure. A back pressure valve can be set at the outlet of the pump to stabilize the output flow of the pump. At this time, the back pressure valve is generally selected The pressure is the actual working pressure of the pump or slightly less than the working pressure of the pump.
The one-way valve on the outlet pipeline is used to prevent liquid from returning, and the back pressure valve is used to maintain a constant pressure at the pump outlet.
When Order, please provide the following data:
- The caliber of the back pressure valve
- The pressure adjustment range
- What material is needed (PVC, 304 stainless steel, 316L stainless steel, other).